<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{margin: 0;padding: 0;}
        html,body{
          height: 100%;
        }
        body{
            background-image: url("images/about.jpg");
            background-repeat: no-repeat;
            background-position-x: center;
            background-position-y: center;
            /*  background-size: 100%; */
            background-size: cover;
        }
    </style>
</head>
<body>
    
</body>
</html>